Connect WordPress theme to 6 domains hosted on private server

General information for the websites: I am writer (alilochhead.com)
the sites are my personal site and for a number of books I am working on and one is for photographic work.
Description of every page/module: I want to build the sites myself using one or two themes from https://www.elegantthemes.com (divi/extra)
I am hosting with NetCells (netcells.net) and I am moving from GoDaddy
I have Cpanel access and the server meets the requirments.
I need to install WP on the server and install the themes and then I will build the six sites.

Cheers!
Description of requirements/features: No development required. I just want to connect to WP theme on private server.
Extra notes: I have only used WP hosting before, I am familiar with WP in general.
This is my first time on PPH so sorry if I make any glaring errors!
Future work may include some support and also SEO development but just to get it all up and running with NetCells for now.